3818709

Information

• Patent Grant
• 3818709

• References
• Source

• Patent Number

  3,818,709

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • E02D17/06 - Foundation trenches ditches or narrow shafts

• US Classifications

  • 405 - Hydraulic and earth engineering